Which of the following is a reactant in aerobic respiration? ◉ATP
◉Carbon dioxide
◉Lactic acid
◉Oxygen
im thinking its oxygen but lemme know if im wrong :p

What would be the most likely result if the ph of the stomach were increased to 5

Cells are adapted to preform specific functions. which of the following terms refers to this capability?

Ivan is looking at a cross section of a stem taken from a vascular plant. he sees two different types of vascular tissue: the xylem, which is closer to the center of the stem, and the phloem, located around the xylem, closer to the outside of the stem. how do these two structures work together in a living plant?